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28955366 = 2114432971
BaseRepresentation
bin110111001110…
…1001011100110
32000111002021222
41232131023212
524403032431
62512340342
7501054656
oct156351346
960432258
1028955366
1115387660
1298446b2
135cca66b
143bba366
15281e57b
hex1b9d2e6

28955366 has 16 divisors (see below), whose sum is σ = 47504448. Its totient is φ = 13127400.

The previous prime is 28955363. The next prime is 28955393. The reversal of 28955366 is 66355982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28955363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8261 + ... + 11231.

It is an arithmetic number, because the mean of its divisors is an integer number (2969028).

Almost surely, 228955366 is an apocalyptic number.

28955366 is a deficient number, since it is larger than the sum of its proper divisors (18549082).

28955366 is a wasteful number, since it uses less digits than its factorization.

28955366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its digits is 388800, while the sum is 44.

The square root of 28955366 is about 5381.0190484703. The cubic root of 28955366 is about 307.0739811873.

It can be divided in two parts, 289 and 55366, that added together give a palindrome (55655).

The spelling of 28955366 in words is "twenty-eight million, nine hundred fifty-five thousand, three hundred sixty-six".

Divisors: 1 2 11 22 443 886 2971 4873 5942 9746 32681 65362 1316153 2632306 14477683 28955366